416 SX Motherboard Settings and Configuration
TANDY/RADIO SHACK
416 SX
Processor | 80386SX |
Processor Speed | 16MHz |
Chip Set | Unidentified |
Video Chip Set | Unidentified |
Maximum Onboard Memory | 16MB (12MB on external memory card) |
Maximum Video Memory | Unidentified |
Cache | None |
BIOS | Unidentified |
Dimensions | 393mm x 381mm |
I/O Options | Floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial port, VGA port, riser slot |
NPU Options | 80387SX |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
PS/2 mouse port | CN1 | IDE interface | CN6 |
Serial port | CN2 | Speaker | CN7 |
Parallel port | CN3 | Speaker | CN8 |
VGA port | CN4 | Riser slot | SL1 |
Floppy drive interface | CN5 | ||
USER CONFIGURABLE SETTINGS | |||
Function | Label | Position | |
» | Factory configured - do not alter | J1 | Closed |
Factory configured - do not alter | J2 | Closed | |
» | Monitor type select color | J3 | Pins 2 & 3 closed |
Monitor type select monochrome | J3 | Pins 1 & 2 closed | |
» | Serial port IRQ select IRQ4 | J4 | Pins 2 & 3 closed |
Serial port IRQ select IRQ3 | J4 | Pins 1 & 2 closed | |
» | Parallel port IRQ select IRQ7 | J5 | Pins 2 & 3 closed |
Parallel port IRQ select IRQ5 | J5 | Pins 1 & 2 closed | |
» | On board video enabled | J6 | Pins 2 & 3 closed |
On board video disabled | J6 | Pins 1 & 2 closed | |
» | Video IRQ disabled | J7 | Pins 2 & 3 closed |
Video IRQ enabled | J7 | Pins 1 & 2 closed | |
» | NPU not installed | J8 | Pins 2 & 3 closed |
NPU installed | J8 | Pins 1 & 2 closed | |
» | Parallel port enabled | S1/1 | On |
Parallel port disabled | S1/1 | Off | |
» | Parallel port address select 378 - 37F | S1/2 | On |
Parallel port address select 278 - 37F | S1/2 | Off | |
» | Serial port enabled | S1/3 | On |
Serial port disabled | S1/3 | Off | |
» | Serial port address select 3F8 - 3FF | S1/4 | On |
Serial port address select 2F8 - 2FF | S1/4 | Off | |
» | Parallel port unidirectional | S1/5 | On |
Parallel port bidirectional | S1/5 | Off | |
» | Floppy drive address select 3F0 - 3F7 | S1/6 | On |
Floppy drive address select 370 - 377 | S1/6 | Off | |
» | Smart drive port select primary | S1/7 | On |
Smart drive port select secondary | S1/7 | Off | |
DRAM CONFIGURATION | ||
Size | Bank 0 | Bank 1 |
1MB | (2) 256K x 9 | (2) 256K x 9 |
2MB | (2) 1M x 9 | None |
4MB | (2) 1M x 9 | (2) 1M x 9 |
Note: The location of banks 0 & 1 are unidentified. | ||
VIDEO MEMORY CONFIGURATION |
Note: The size, location and chip sizes for the video memory is unidentified. |
My Books
